Katherine Elizabeth Wagner, MD
Neurological Surgery Physician · Ventura, CA
Katherine Elizabeth Wagner, MD is a neurological surgery physician with a practice address in Ventura, California, and NPI 1093125478, issued on May 6, 2014. Check the license (California A171941, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Elizabeth Wagner
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- A171941 CA
Self-reported in NPPES; status is on the state search - Practice location
- 168 N Brent St Ste 408, Ventura, CA 93003
- Phone
- (617) 281-5273
- Enumerated
- May 6, 2014
- Record last updated
- Apr 6, 2026
- Fax
- (805) 643-0672
- Medicare enrollment
- Enrolled (PECOS I20210608003502); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Also registered at 168 N Brent St Ste 408
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Westra, M.D.Neurological Surgery Physician1265645790
Verify Katherine Elizabeth Wagner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A171941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average neurological surgery physician in 2024
450 Medicare Part D claims for 108 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. 165 claims were for opioids.
Most prescribed
- Methocarbamol82 claims
- Oxycodone Hcl74 claims
- Hydrocodone-Acetaminophen45 claims
- Methylprednisolone41 claims
- Oxycodone-Acetaminophen32 claims
- Celecoxib26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $5,987.58
171 payments; by number, the most common kind was food and beverage; the largest payer was Globus Medical, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- County OF VenturaVentura, CA
- David L. Westra, MD, A Professional CorporationVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Elizabeth Wagner among 929 neurological surgery physician records in California
Katherine Elizabeth Wagner, MD is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.
- NPI issued2014 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2014 · median 2005 among the 612 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in Ventura → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Moustapha Abou-Samra, MDVentura, CA 930031194719807
- James Herman, MDVentura, CA 930031952396491
- Nathan Oh, D.O.Ventura, CA 930031992115778
- Richard Pratt, M.D.Ventura, CA 930031245264878
- Aria Sabit, M.D.Ventura, CA 930031659510972
- Alan Siu, MDVentura, CA 930031306073457
- Nicholas Tarlov, MDVentura, CA 930031639378078
- David Westra, M.D.Ventura, CA 930031265645790
Common questions
What is Katherine Elizabeth Wagner, MD's NPI number?
Katherine Elizabeth Wagner, MD's National Provider Identifier (NPI) is 1093125478, issued on May 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Elizabeth Wagner, MD located?
The NPPES record lists a practice address at 168 N Brent St Ste 408, Ventura, CA, 93003. Phone: (617) 281-5273. Providers update this record themselves, so call before visiting.
How can I verify Katherine Elizabeth Wagner, MD's license?
NPPES lists California license number A171941, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Elizabeth Wagner, MD prescribe under Medicare Part D?
In 2024, Katherine Elizabeth Wagner, MD had 450 Medicare Part D claims for 108 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.